This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A061270 #12 Jan 29 2023 23:01:59 %S A061270 0,1,4,9,100,144,400,441,900,10000,10404,14400,40000,40401,44100, %T A061270 44944,90000,1000000,1004004,1040400,1440000,4000000,4004001,4040100, %U A061270 4410000,4494400,9000000,9941409,11909401,100000000,100040004,100400400 %N A061270 Squares such that each digit is a square and the sum of the digits is a square. %D A061270 Amarnath Murthy, Smarandache Additive square sequence is infinite. (To be published in Smarandache Notions Journal.) %D A061270 Amarnath Murthy, Infinitely many common members of the Smarandache Additive as well as multiplicative square sequence. (To be published in Smarandache Notions Journal.) %D A061270 Felice Russo, A set of new Smarandache functions, sequences and conjectures in number theory, American Research Press 2000. %e A061270 44944 = 212^2, each digit is a square, sum of digits = 4 + 4 + 9 + 4 + 4 = 25 = 5^2. %Y A061270 Cf. A053057, A053059, A061267, A061268, A061269. %K A061270 nonn,base %O A061270 1,3 %A A061270 _Amarnath Murthy_, Apr 24 2001 %E A061270 More terms from Larry Reeves (larryr(AT)acm.org), May 11 2001 %E A061270 a(1)=0 inserted by _Sean A. Irvine_, Jan 29 2023